摘要
采用HNO3-HClO4(4+1)湿法消解样品,用火焰原子吸收光谱法测定玉米中铁、锰、铜、锌的含量。测得铁、锰、铜、锌的回收率分别在97%～99%、95%～100%、95%～103%,100%～104%之间,平均回收率为95%～104%,RSD为0.1%～0.9%,表明该方法准确可靠。
With HNO3～HClO4（4＋1） wet indesgition method to pretreat samples,the contents of four elements Fe,Mn,Cu,Zn in Corn had been determinated by flame atomic absorption spectrometry.And the recovery rate of 97%～99% for Fe,95%～100% for Mn,95%～103% for Cu,100%～104% for Zn were obtained.The average rate was 95%～104%.RSD was 0.1%～0.9%.It was shown that the method was reliable for the test of precision and accuracy.
出处
《食品与发酵科技》
CAS
2011年第6期87-88,95,共3页
Food and Fermentation Science & Technology
关键词
玉米
微量元素
火焰原子吸收光谱法
corn
trace elements
flame atomic absorption spectrometry
